1 /* 2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "classfile/javaClasses.hpp" 27 #include "classfile/symbolTable.hpp" 28 #include "classfile/systemDictionary.hpp" 29 #include "classfile/vmSymbols.hpp" 30 #include "gc/shared/collectedHeap.inline.hpp" 31 #include "memory/oopFactory.hpp" 32 #include "memory/resourceArea.hpp" 33 #include "memory/universe.hpp" 34 #include "oops/instanceKlass.hpp" 35 #include "oops/instanceOop.hpp" 36 #include "oops/objArrayOop.hpp" 37 #include "oops/oop.inline.hpp" 38 #include "oops/typeArrayOop.inline.hpp" 39 #include "runtime/handles.inline.hpp" 40 41 42 typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) { 43 int length = utf8_str == NULL ? 0 : UTF8::unicode_length(utf8_str); 44 typeArrayOop result = new_charArray(length, CHECK_NULL); 45 if (length > 0) { 46 UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length); 47 } 48 return result; 49 } 50 51 typeArrayOop oopFactory::new_tenured_charArray(int length, TRAPS) { 52 return TypeArrayKlass::cast(Universe::charArrayKlassObj())->allocate(length, THREAD); 53 } 54 55 typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) { 56 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); 57 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); 58 typeArrayOop result = type_asArrayKlass->allocate(length, THREAD); 59 return result; 60 } 61 62 // Create a Java array that points to Symbol. 63 // As far as Java code is concerned, a Symbol array is either an array of 64 // int or long depending on pointer size. Only stack trace elements in Throwable use 65 // this. They cast Symbol* into this type. 66 typeArrayOop oopFactory::new_symbolArray(int length, TRAPS) { 67 BasicType type = LP64_ONLY(T_LONG) NOT_LP64(T_INT); 68 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); 69 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); 70 typeArrayOop result = type_asArrayKlass->allocate(length, THREAD); 71 return result; 72 } 73 74 typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) { 75 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); 76 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); 77 typeArrayOop result = type_asArrayKlass->allocate_common(length, false, THREAD); 78 return result; 79 } 80 81 82 objArrayOop oopFactory::new_objArray(Klass* klass, int length, TRAPS) { 83 assert(klass->is_klass(), "must be instance class"); 84 if (klass->is_array_klass()) { 85 return ArrayKlass::cast(klass)->allocate_arrayArray(1, length, THREAD); 86 } else { 87 return InstanceKlass::cast(klass)->allocate_objArray(1, length, THREAD); 88 } 89 } 90 91 objArrayHandle oopFactory::new_objArray_handle(Klass* klass, int length, TRAPS) { 92 objArrayOop obj = new_objArray(klass, length, CHECK_(objArrayHandle())); 93 return objArrayHandle(THREAD, obj); 94 } 95 96 typeArrayHandle oopFactory::new_byteArray_handle(int length, TRAPS) { 97 typeArrayOop obj = new_byteArray(length, CHECK_(typeArrayHandle())); 98 return typeArrayHandle(THREAD, obj); 99 }